- Powerful, broad sound
- Very comfortable fit
- Simple and high-quality design of the buds
- Somewhat muffled sound in places
- No app, no equaliser
- Moderate workmanship of the charging case
The Sennheiser ACCENTUM Open are high-quality in-ear headphones designed for a premium listening experience. These true wireless earbuds offer a wireless connection via Bluetooth 5.3 and are equipped with a noise reduction feature that effectively minimizes ambient sounds. The headphones are particularly user-friendly, as they include an integrated microphone for calls and music control. With a battery life of up to 6 hours and a standby time of around 28 hours, they are ideal for everyday use. Additionally, they are rated IPX4, meaning they are splash-resistant and can be used during sports activities or outdoors. The included charging case ensures that the headphones are always ready for use.
Equipment + Functions | Microphones, Noise Reduction |
Headphone type | In Ear Headphones |
Signal transmission | Wireless |
Noise cancelling | ANC |
Isolation | Open |
Item number | 57857031 |
Manufacturer | Sennheiser |
Category | Headphones |
Manufacturer no. | 700430 |
Release date | 17.4.2025 |
Sales rank in Category Headphones | 251 of 6643 |
Colour | Black |
Exact colour description | Black |
Output | Stereo |
Noise cancelling | ANC |
Equipment + Functions | Microphones, Noise Reduction |
Music control | touchpad remote control |
Signal transmission | Wireless |
Button functions | interregnum |
Headphone type | In Ear Headphones |
Fit | In Ear |
Isolation | Open |
Driver diameter | 11 mm |
Protection type (IP code) | IPX4 |
Converter principle | Dynamic |
Membrane size | 11 mm |
Sensitivity | 109 dB |
Connections base/transmitter | USB-C |
Bluetooth version | 5.3 |
Bluetooth feature | AAC, SBC |
Bluetooth profiles | AAC, SBC |
Power supply | Rechargeable battery operated |
Battery type | Li-ion |
Battery life | 6 h |
Capacity | 400 mAh |
Charging time | 1.50 h |
Charging input | USB-C |
Country of origin | China |
CO₂-Emission | |
Climate contribution |
Scope of delivery | Charging station |
Height | 5.17 cm |
Width | 10.10 cm |
Depth | 9.50 cm |
Weight | 120 g |
Length | 9.50 cm |
Width | 9 cm |
Height | 3.30 cm |
Weight | 116 g |
Product Safety |
How often does a product of this brand in the «Headphones» category have a defect within the first 24 months?
Source: GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: GalaxusHow often is a product of this brand in the «Headphones» category returned?
Source: Galaxus